Handle-fastening.



G. L. HOLT.

HANDLE FASTENING.

APPLICATION FILED D20. 6, 1911.

Patented June 9, 1914.

GARDNER L. HOLT, OFHARTFORD, CONNECTICUT.

HANDLE-FASTENING..

nooasoo.

Specification of Letters Patent.

Patented June 9, 1914.

Application filed December 6, 1911. Serial No. 664,269.

To all whom it may concern Be it known that I, GARDNER L. I-IoL'r, acitizen of the United States, residing at Hartford, in the county ofHartford and State of Connecticut, have invented certain new and usefulImprovements in Handle- Fastenings, of which the following is aspecification.

My invention relates to improvements in handle fastenings, and theobjects of my improvements are simplicity and economy in constructionand convenience and elliciency in use.

Figure l is a side elevation ofmy handle fastening provided with a toolmagazine. Fig. 2 is a plan view of the same on an enlarged scale. Fig. 3is a sectional view on the line a a of Fig. 2. Fig. 4 is a sectionalview on the line 11 o of Fig. 2. Fig. 5 is a side elevation of the samewith the locking shell nut member removed, and showing a number of toolblades in the tool chamber or magazine. Fig. 6 is a side elevation inpart 1 broken out and in section of a handle fastening embodying myinvention and having a modified form of the shell nut.

A is my improved tool and comprises a tool handle B and tool blade Cwhich are separably connected in a manner to be described. The said tool0 comprises a shank having a tool bit at the outer end suitable for thework for which the same is to be used and at the inner end provided witha head 25 that is cylindrical for an appreciable portion of its lengthand has a pair of lateral wings 26 in the form of flanges, of generallyuniform thickness and semiecircular formation and formed from the bodyof the said head 25 by suitable dies, the said wings being locatedpreferably as shown intermediate the length of the cylindrical bodyportion 27 of the said head 25, and in an axial plane. The said toolhandle B is provided with a pair of jaws D having a socket E that is afit for the said head 25, comprising a cylindrical portion 28 fittingthe said cylindrical portion 27 on the head 25 and a pair of recesses 29fitting the said wings 26, and the tool end 36 bottoming on the end 37of the socket E. The said jaws D meet along an axial plane coincidentwith the plane of the wings 26, which plane accordingly divides the saidsocket E symmetrically into two similar halves, comprising each asemicylindrical body portion 30 and a pair of semi-circular lateralrecesses 31. The said socket E is located at the tool end of the jaws Dand the inner or handle ends 33 of the said jaws D are secured togetherby being driven into a hole 32 in the handle proper F which hole is atight [it for the exterior thereof, and a pin Gr passing,

movement, permitting a sufficient opening.

at the tool end to admit the tool to the socket E, the said tool endoverhanging or projecting beyond the outer end of the handle proper Fand intermediate the said outer end and. the hole 32 is housed in acylindrical chamber H which is sufliciently large in diameter to permitof such free movement of the jaws D. The exterior of the tool end of thesaid jaws D is tapered and threaded to provide a taper thread I, andwhich is suitable for engaging with the taper thread J on a locking nutK. When the said head 25 is in position in the socket E, screwing thenut Kon the thread I serves to secure the tool blade C in the toolhandle D. The said nut K may be provided with a sleevelike extension 34which serves as a finish for the tool end of the handle, and whichsleeve may as shown, fit inside the outer end of the handle proper F.

I find that by suitably enlarging the clear ance chamber H in the handleproper F, I provide a chamber suitable for the storage of spare orchange tool blades, C, C C and which blades are retained in said chamberby a corresponding enlargement of the sleeve portion 34 of the lockingnut member K. An enlargement 35 of the outer end of the chamber H may beprovided suitably to receive the inner end of the sleeve portion 34 ofthe locking nut, whereby the said end will be received within the bodyof the handle proper F.

I prefer to use for making the two jaw members D semi-circular stock inthe form of arod, cut to suitable lengths. The said lengths are placedtogether with the flat sides in abutment and are pinned togetheradjacent the inner or handle end by a construction pin L in a manner toprevent reladrical portion 28 of the socket E and the 'unit, and'when sounited the said tool end is drilled axially to provide the saidcylinexterior is tapered and threaded to form the said taper thread I.The jaw members D are next angularlyseparated at the tool end in themanner described and the lateral semi-circular recesses 29 formed bycounterboring as shown in Fig. 3 or milling or the recesses 29* of thesocket E formed by milling across the inner face of the jaw members D,as shown in Fig. 4.

7 As described the pair of jaw members D is completed suitably forreceiving the end of the tool member and is next forced into the hole 32in the handle proper F, after which the handle proper and jaw membersare drilled laterally and the pin inserted, which pin G may pass throughthe entire thickness of the handle proper F or may pass through only oneside of the handle proper F, as shown in Fig. 4;.

As described the fiat faces of the jaw members D are in abutmentthroughout the entire length, including the portions at the tool endsinclosed by the thread I and particularly so when the tool member isomitted,

and because ofthis there is no possibility of'straining or springing thejaw members when the tool is so removedp: V

I prefer to makethe jaw members D of relatively appreciable length,whereby theefi'ected, even when the jawsfare made of heavy material andsuitable-for heavy duty and without any tendency to spring the material,which opening. and closing is limited opening and closing of the jaws isreadily as described to the portion extending to[ the said hole 32 inthe handle proper F.

The chamber Hpermits ofopening and closing of the jaws and at the sametime provides .a storage chamber for spare tools that permits of storinga econsiderablenumber of such tools ina handle proper of comparativelysmall dimensions.

The special'nut K shown in Fig. 6 has an annular fiat outer end insteadof a conical form as shown in the nut K, Fig. 8.

.C'laim:-

In a tool comprising a handle proper and a pair of jaw members havingjawsflprovided with means for removablysecuringa tool, the saidhandleproper comprising a body portion and a hollow cylindrical extensionthereof, the said jaw members being secured in the said body portion,and extending through the said extension, and the inner surfaces of thesaid extension and the outer surfaces of the said jaw members beingseparated by an annular and open space suitable for housing toolstherein.

GARDNER 1L. HOLT. Vitnesses:

H. T. HOLT, V LOUIS M. SCHMIDT.

Copies of this patent maybe obtained for five cents each, by addressingthe Commissioner of Batents,-

Washington, D. 0.?

